PLEAAASE HELLLP what is the interior angle sum of these shapes? show your work

Find the slope of the line y =8/9x + 1.

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg